Categories Ludwig Wittgenstein On Certainty Quote from Ludwig Wittgenstein, On Certainty Post author By Beautiful Quotes Post date February 25, 2022 No Comments on Quote from Ludwig Wittgenstein, On Certainty I am sitting with a philosopher in the garden; he says again and again ‘I know that that’s a tree’, pointing to a tree that is near us. Someone else arrives and hears this, and I tell him: ‘This fellow isn’t insane. We are only doing philosophy. Tags Ludwig Wittgenstein, On Certaintyinsanity, philosophy